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An extended mass range quadrupole for electrospray mass spectrometry

TitleAn extended mass range quadrupole for electrospray mass spectrometry
Publication TypeJournal Article
Year of Publication1997
AuthorsCollings, BA, Douglas, DJ
JournalInternational Journal of Mass Spectrometry and Ion Processes
Volume162
Pagination121-127
Date PublishedMar
Type of ArticleArticle
ISBN Number0168-1176
KeywordsCLUSTERS, COMPLEXES, CONFORMATIONAL-CHANGES, DISSOCIATION, ELECTROSPRAY, high mass, IONIZATION-POTENTIALS, IONS, non-covalent, NONCOVALENT INTERACTIONS, PROTEINS, quadrupole mass spectrometer, SOYBEAN AGGLUTININ
Abstract

The mass range of a quadrupole mass spectrometer with an electrospray source has been increased from m/z 4000 to m/z 8585 by lowering the radio frequency of the quadrupole power supply from 1.00 MHz to 683 kHz. Unit mass resolution at m/z 5030 can be achieved. The sensitivity below m/z 3000 shows only small changes as expected from phase space arguments. Spectra of poly propylene glycol and soybean agglutinin with peaks in the range m/z 4000-7000 are described. (C) 1997 Elsevier Science B.V.

URL<Go to ISI>://A1997XD00700011